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Dyna – Engine & Gaskets

Browse engine & gaskets selected for Harley-Davidson Dyna motorcycles. Available items span engine components and gaskets, seals and service parts, helping you compare parts intended for different jobs. Confirm model coverage, key measurements and any supporting parts required on the individual listing.

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£20.02
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MCS Sprocket Shaft Bearing Spacer Shim .114" – 1969–2002 Big Twin; Twin Cam B

Only 2 left!

MCS Sprocket Shaft Bearing Spacer Shim .114" – 1969–2002 Big Twin; Twin Cam B Used to set correct pre-load onto sprocket shaft bearings. Approx. di...

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£19.07
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£19.07

MCS Sprocket Shaft Bearing Spacer Shim .112" – 1969–2002 Big Twin; Twin Cam B

Only 2 left!

MCS Sprocket Shaft Bearing Spacer Shim .112" – 1969–2002 Big Twin; Twin Cam B Used to set correct pre-load onto sprocket shaft bearings. Approx. di...

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£19.07
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£20.02
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£19.07
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£19.07

MCS Sprocket Shaft Bearing Spacer Shim .110" – 1969–2002 Big Twin; Twin Cam B

Only 2 left!

MCS Sprocket Shaft Bearing Spacer Shim .110" – 1969–2002 Big Twin; Twin Cam B Used to set correct pre-load onto sprocket shaft bearings. Approx. di...

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£20.02
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£20.02
£19.07
£19.07 - £19.07
£19.07
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£20.02
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£19.07
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£19.07

MCS Sprocket Shaft Bearing Spacer Shim .108" – 1969–2002 Big Twin; Twin Cam B

Only 3 left!

MCS Sprocket Shaft Bearing Spacer Shim .108" – 1969–2002 Big Twin; Twin Cam B Used to set correct pre-load onto sprocket shaft bearings. Approx. di...

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£20.02
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£20.02
£19.07
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£19.07
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£18.18
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£18.18
£17.31
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£17.31

MCS Sprocket Shaft Bearing Spacer Shim .106" – 1969–2002 Big Twin; Twin Cam B

Only 2 left!

MCS Sprocket Shaft Bearing Spacer Shim .106" – 1969–2002 Big Twin; Twin Cam B Used to set correct pre-load onto sprocket shaft bearings. Approx. di...

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£18.18
£18.18 - £18.18
£18.18
£17.31
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£17.31
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£350.16 - £350.16
£350.16
£358.08
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£358.08

EMD Ribster Rocker Cover Set. Semi-polished – 1984–1999 Evo Big Twin

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EMD Ribster Rocker Cover Set. Semi-polished – 1984–1999 Evo Big Twin Vintage semi-polished finish. Sold in pairs for one engine. Direct replacement...

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£350.16 - £350.16
£350.16
£358.08
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£369.09 - £369.09
£369.09
£377.44
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£377.44

EMD Sportster Ribster Rocker Cover Set. Semi-Polished – 2004–2022 XL Sportster

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EMD Sportster Ribster Rocker Cover Set. Semi-Polished – 2004–2022 XL Sportster Vintage semi-polished finish. Sold in pairs for one engine. Direct r...

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£369.09 - £369.09
£369.09
£377.44
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£377.44
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£338.70 - £338.70
£338.70
£346.36
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£346.36

EMD Twin Cam Snatch Rocker Cover Set. Black Cut – 1999–2017 Twin Cam

Out of stock

EMD Twin Cam Snatch Rocker Cover Set. Black Cut – 1999–2017 Twin Cam Black Cut finish. Sold in pairs for one engine. Direct replacement for the OEM...

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£338.70 - £338.70
£338.70
£346.36
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£346.36
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£276.89
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£276.89
£240.27
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£240.27

Jims Twin Cam Handcrafted Tappet Cover Set. Raw Finish – 1999–2017 Twin Cam

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Jims Twin Cam Handcrafted Tappet Cover Set. Raw Finish – 1999–2017 Twin Cam Raw cut and hand-welded for a tough handcrafted look. Repl. 17964-99 (f...

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£276.89
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£276.89
£240.27
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£240.27
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£331.47
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£331.47
£283.14
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£283.14

Jims Twin Cam Billet Tappet Cover Set. Chrome – 1999–2017 Twin Cam

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Jims Twin Cam Billet Tappet Cover Set. Chrome – 1999–2017 Twin Cam Chrome plated finish. CNC machined from billet 6061-T6 aluminum with a precision...

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£331.47
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£331.47
£283.14
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£283.14
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£1,180.01
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£1,180.01
£1,014.79
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£1,014.79

Jims Powerglide Tappet & Pushrod Kit. Chrome – 1966–1984 Shovelhead

Out of stock

Jims Powerglide Tappet & Pushrod Kit. Chrome – 1966–1984 Shovelhead Comes with 4 Powerglide big axle tappets that offer superior modern hydraul...

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£1,180.01
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£1,180.01
£1,014.79
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£1,164.17
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£1,001.17
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Jims Tappet Block and Powerglide Tappet Kit. Polished – 1953–1965 Panhead; 1966–1984 Shovelhead

Out of stock

Jims Tappet Block and Powerglide Tappet Kit. Polished – 1953–1965 Panhead; 1966–1984 Shovelhead This kit has a 3/8" lower seat for the pushrods; re...

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£1,164.17
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£1,164.17
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£683.90
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£683.90
£588.15
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£588.15

Jims 84-99 Billet Tappet Block Set. Polished – 1984–1999 Evo Big Twin

Out of stock

Jims 84-99 Billet Tappet Block Set. Polished – 1984–1999 Evo Big Twin Manufactured from billet 7075-T651 aluminum. Can be used as a stock replaceme...

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£683.90
£683.90 - £683.90
£683.90
£588.15
£588.15 - £588.15
£588.15
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£43.18
£43.18 - £43.18
£43.18
£42.57
£42.57 - £42.57
£42.57

Jims Steel Breather Valve Spacers .150" – L1977–1999 Big Twin

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Jims Steel Breather Valve Spacers .150" – L1977–1999 Big Twin Use with steel breather valves only. Large hole. Used to set correct end play. Note: ...

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£43.18
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£43.18
£42.57
£42.57 - £42.57
£42.57
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£43.18
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£42.57
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£42.57

Jims Steel Breather Valve Spacers .135" – L1977–1999 Big Twin

Only 2 left!

Jims Steel Breather Valve Spacers .135" – L1977–1999 Big Twin Use with steel breather valves only. Large hole. Used to set correct end play. Note: ...

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£43.18
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£43.18
£42.57
£42.57 - £42.57
£42.57
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£43.18
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£43.18
£42.57
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£42.57

Jims Steel Breather Valve Spacers .110" – L1977–1999 Big Twin

Only 2 left!

Jims Steel Breather Valve Spacers .110" – L1977–1999 Big Twin Use with steel breather valves only. Large hole. Used to set correct end play. Note: ...

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£43.18
£43.18 - £43.18
£43.18
£42.57
£42.57 - £42.57
£42.57
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£203.79 - £203.79
£203.79
£205.35
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£205.35

Arlen Ness 10-Gauge Tappet Block Cover Kit. Black – 1999–2017 Twin Cam; S&S T-series Engines

Out of stock

Arlen Ness 10-Gauge Tappet Block Cover Kit. Black – 1999–2017 Twin Cam; S&S T-series Engines Gloss Black Contrast Machined anodized armor coati...

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£203.79 - £203.79
£203.79
£205.35
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£205.35
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£234.37 - £234.37
£234.37
£236.17
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£236.17

Arlen Ness TC 10-Gauge Pushrod Cover Set. Black – 1999–2017 Twin Cam

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Arlen Ness TC 10-Gauge Pushrod Cover Set. Black – 1999–2017 Twin Cam Gloss black contrast machined anodized finish. CNC machined 6061-T6 billet alu...

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£234.37 - £234.37
£234.37
£236.17
£236.17 - £236.17
£236.17
£66.83 - £66.83
£66.83
£67.34
£67.34 - £67.34
£67.34

Riverside Custom Head Bolt Cover Kit. Chrome Aluminum – L1985–2017 Big Twin; 1986–2022 XL…

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Riverside Custom Head Bolt Cover Kit. Chrome Aluminum – L1985–2017 Big Twin; 1986–2022 XL… Chrome plated machined aluminum construction. Fits over ...

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£66.83 - £66.83
£66.83
£67.34
£67.34 - £67.34
£67.34
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£346.03
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£346.03
£295.59
£295.59 - £295.59
£295.59

MCS Replacement 80" Flathead Piston Kit. Std – 1937–1941 80" (1300cc) 3-7/16" Bore…

Only 3 left!

MCS Replacement 80" Flathead Piston Kit. Std – 1937–1941 80" (1300cc) 3-7/16" Bore… Cast aluminum pistons for a stock 1300cc Side Valve rebuild. Pi...

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£346.03
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£346.03
£295.59
£295.59 - £295.59
£295.59
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£45.44
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£45.44
£43.27
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£43.27

Hastings 2-3/4" Bore Piston Ring Set. +.020" – 1950–1973 45" (750cc) Flathead; All…

Only 2 left!

Hastings 2-3/4" Bore Piston Ring Set. +.020" – 1950–1973 45" (750cc) Flathead; All… Used with late style 1950-1973 type pistons with 1/16" gray iro...

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£45.44
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£45.44
£43.27
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£43.27
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£288.12 - £288.12
£288.12
£290.34
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£290.34

MCS Replacement 45" Flathead Piston Kit. +.050" – 1929–1973 45" (750cc) Side Valves

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MCS Replacement 45" Flathead Piston Kit. +.050" – 1929–1973 45" (750cc) Side Valves Cast aluminum OEM style pistons for a stock rebuild. Wil fit al...

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£288.12 - £288.12
£288.12
£290.34
£290.34 - £290.34
£290.34
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£334.69
£334.69 - £334.69
£334.69
£323.11
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£323.11

KB Performance Piston 96"/103" To 110" Twin Cam Piston Kit. STD – 2007–2017 110" Twin Cam

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KB Performance Piston 96"/103" To 110" Twin Cam Piston Kit. STD – 2007–2017 110" Twin Cam Forged big bore conversion piston set. Used for convertin...

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£334.69
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£334.69
£323.11
£323.11 - £323.11
£323.11
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£334.69
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£334.69
£323.11
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£323.11

KB Performance Piston 96" To 103" Twin Cam Piston Kit. STD – 2007–2017 96" Twin Cam

Only 2 left!

KB Performance Piston 96" To 103" Twin Cam Piston Kit. STD – 2007–2017 96" Twin Cam Forged piston set. For 96" (3-3/4") to 103" (3-7/8") big bore c...

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£334.69
£334.69 - £334.69
£334.69
£323.11
£323.11 - £323.11
£323.11
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